Copepod filters for guinea-worm control--users have their say.
In Nigerian communities where dracunculiasis is endemic a sewn filter is commonly used to remove the copepod intermediate host of guinea-worm from drinking-water. Unfortunately, it is not easy to handle, and the bucket lid filter used on a much smaller scale is comparatively expensive. A field investigation revealed that a large majority of people favoured the introduction of a user-friendly plastic funnel filter developed in India. Under Nigerian conditions this device requires the diameter of its outlet to be increased to permit a suitably fast flow of water and thus to avoid excessively rapid blocking of the monofilament filter material.
Akinsola
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Nigeria Guinea-worm Eradication Programme, Ibadan, Nigeria.
Kale
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D000818:Animals; D004199:Disease Vectors; D004320:Dracunculiasis / Q000517:prevention & control*; D019353:Endemic Diseases / Q000517:prevention & control*; D005374:Filtration; D006801:Humans; D009549:Nigeria; D018508:Water Purification / Q000379:methods*